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C. B. SGHOENMEHL. GALVANIG BATTERY.

Patented Jan. 22, 1895.

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C. B. SCHOENMEHL.

GALVANIG BATTERY.

No. 532,826. Patented Jan. 22, 1895.

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CHARLES B. SCHOENMEHL, OF WATER-RUBY, CONNECTICUT, ASSIGNOR yOF ONE-HALF TO CLARKM. PLATT, OF SAME PLACE.

GALVANICIBA'TERY.-

SPECIFICATION forming part of Ilettersrlate'nt No. 532,826, dated January 22, 1895. Application tiled November 14, 1893. Serial 110.490,943. (No model.)

To @ZZ whom it may concern:

YBe it known that I, CHARLES B. Sonoma. MEHL, a citizen of the United States, and 'a resident of Waterbury,in the county of New Haven and State of Connecticut, have inV` vented certain new and useful Improvements in Galvanic Batteries, of which the following is a specification.

My invention relates to galvanic batteries, and particularly that classin which zinc and carbon are the essential elements, together with any suitable solution for instance salammoniac, or the electropoion iiuid, the special lobj ect being to improve upon the various batteries now in use and to simplify and cheapen their method of construction, and more particularly to increase their` strength, capacity, and life, and further to prevent any possible corrosion of the metal, and with these ends in view my invention consists in the construction hereinafter fully described and then recited in the claims.

In order that those skilled in the art to which my invention appertains may fully understand its construction, I will proceed to describe the same in detail, reference being 'had to the accompanying drawings, and the numerals marked thereon, which form a part of this specification, and in which- Figure l. is a side elevation of my novel battery-pole the jar being in cross section. Fig. 2. is an inverted plan view of the cover prior to the introduction of the carbons, and the molten metal. Fig. 3. is a perspective view of the cover. Fig. 4. is across section of the cover, the metal and carbons being omitted. Fig. 5. is a cross section of the cover, the carbons and metal being inserted. Fig. 6 is a cross section of a slightly modified form of construction. l

Upon the drawings l denotes a suitable jar which may be of any preferred construction, and preferably of glass.

2 denotes the cover which is made of porcelain or. other suitable material and of the shapes shown. In the center of the covering 2 I provide a suitable opening 3 in which may be placed the usual zinc stick 4 having a suitable binding screw 5 of the ordinary construction, said stick serving as one pole of the battery. The lower periphery of the cover tallic connection between them.

'lain cover .which is a part of the pole, may

has a ledge 6 for the purpose of snugly fitting upon the -j ar, as shown in Fig. 1.

The carbon pole of the battery is integral with the cover and it consists of a circular series of carbons 7 which may be of any preferred formation, said carbons being arranged so as to be 'exposed upon all sides to the fluid in the jar, and not exposing the mebe formed as shown in Figs. 5 or 6, each having an annular recess 8 for the purpose of receiving the ends of the carbons 7, and lead or other suitable metal 9. In Figs'l to 5 in- 65 elusive it will be seen that this recess is formed upon the periphery and extends well into the cover, having a series of openings from the bottom and connecting therewith, through which the ends of the carbons 7 are inserted, 7o

and within the recess' I provide a series of 75 shallow bores l2 which register with the openings 10 in the base of the cover. These bores as will be apparent are for the purpose of receiviiig the ends of the carbons and retaining them at ay perfect right angle to the cover 8o while the metal is being inserted.

It will be observed that the metal connection -wit'nin the cover and between the carbons are not exposed to the interior of the jar, or to the top of the cover, thus protecting it from iiuid, gases, dro.

In Fig. 6 the metal is entirely incased on all sides and is in no way exposed to the acid or atmosphere. A suitable metallic connection would be made throughthe top of the 9o cover to a binding screw ll, which could read` ily be done by a small hole being formed in the cover when made, and the binding post screwed through and into the metal when completed, or the post may be secured to the side of the cover as shown in Fig. 5.

It will beclearly seen from thev above devices that by the inclosure of the metal within the cover said metal is preserved against corrosion, thereby lengthening the life ofthe roo battery. Corrosion is a common occurrence among many batteries of this class, when wa- The porce- 6o ter, acid, and gases are permitted to co me into direct contact with the metal, as will be appreciated by those skilled in the art.

The manufacture of this battery is simple and inexpensive, and consists first in providing the cover with a suitable annular recess as shown, and an opening or a series of openings through the bottom of the cover and into the recess, next placing the carbons in position Within said openings, then itting a separable ring around the annular recess of the cover, after which the cover is ready and receives its molten metal Within the recess and around the carbons. Said metal will quickly cool and harden, thereby retaining the carbons in position.

Having thus described my invention, What I claim, and desire to secure by Letters Patent, is-

1. As a new article of manufacture a carbou pole of abattery which consists of an insulated cover, having an internal annular rccess, openings through the bottom of the cover into said recess, a series of carbons having their ends extended into said recess, and cast metal Within and filling said recess for the purpose of retaining the carbons and serving to complete the electrical connection between said carbons, substantially as described and for the purpose specified.

2. In a carbon pole of a batteryof the class combination with an insulated cover, of a pe- `ripheral annular recess within said cover, a

series of openings extending through the under side ot' the cover into the annular recess, a series of bores extending into the top from the recess and registering with the beforementioned openings, carbon sticks arranged Within said openings'with their ends extended through the beforementioned recess andinto the bores, and metal within `the recess and surrounding the endsof the carbone whereby they are retained and their metallic connection completed.

Signed at Bridgeport, in the countyof Fairfield and State of Connecticut, this 11th day of November, A. D. 1893.

CHARLES B. SCI-IOENMEHL.

Witnesses:

C. M. NEWMAN, W. G. BRoWNsoN. 

